dorsal/arxiv
View SchemaA General SU(2) Formulation for Quantum Searching with Certainty
| Authors | Jin-Yuan Hsieh, Che-Ming Li |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0112035 |
| URL | https://arxiv.org/abs/quant-ph/0112035 |
| DOI | 10.1103/PhysRevA.65.052322 |
| Journal | Physical Review A, Volume 65, 052322 (2002) |
Abstract
A general quantum search algorithm with arbitrary unitary transformations and an arbitrary initial state is considered in this work. To serach a marked state with certainty, we have derived, using an SU(2) representation: (1) the matching condition relating the phase rotations in the algorithm, (2) a concise formula for evaluating the required number of iterations for the search, and (3) the final state after the search, with a phase angle in its amplitude of unity modulus. Moreover, the optimal choices and modifications of the phase angles in the Grover kernel is also studied.
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"abstract": "A general quantum search algorithm with arbitrary unitary transformations and\nan arbitrary initial state is considered in this work. To serach a marked state\nwith certainty, we have derived, using an SU(2) representation: (1) the\nmatching condition relating the phase rotations in the algorithm, (2) a concise\nformula for evaluating the required number of iterations for the search, and\n(3) the final state after the search, with a phase angle in its amplitude of\nunity modulus. Moreover, the optimal choices and modifications of the phase\nangles in the Grover kernel is also studied.",
"arxiv_id": "quant-ph/0112035",
"authors": [
"Jin-Yuan Hsieh",
"Che-Ming Li"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.65.052322",
"journal_ref": "Physical Review A, Volume 65, 052322 (2002)",
"title": "A General SU(2) Formulation for Quantum Searching with Certainty",
"url": "https://arxiv.org/abs/quant-ph/0112035"
},
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